As one of Vuo's developers, I work on Vuo's engine (the thing that makes compositions run), work on nodes, and write documentation. You'll see me on the forums answering people's questions about Vuo.
I've been developing apps and frameworks for several years (since I was in college). Pre-Vuo projects include Kineme Quartz Composer plugins, iOS apps for education, an app that analyzes photographs of tomato slices, and software to help people with disabilities use talking keyboards.
I enjoy using Vuo to make live music visuals. My hope for Vuo is that it will grow into a community of people of diverse backgrounds and identities making lots of different artistic, useful, unique, goofy, beautiful, crafty, wonderful compositions.
Indeed. OpenGL doesn't support images larger than 16,384 x 16,384.
In Vuo 1.2.3 and prior, it would output an empty image instead of crashing. We'll restore that behavior in the next release. I've also created a feature request to add support for very large images (https://vuo.org/node/2110).
We tested on a couple computers at Vuo HQ and are also seeing the flickering. Not seeing any problems with the event flow. I checked if the flickers coincided with the occasional events from Fire Periodically or Smooth with Duration : Reached Target, but they don't.
@casdekker, have you found a solution? If not, I can convert your question to a bug report.